Spindle-bearing



- No. 625,!54. Patented May l6, I899.

' G. 0. DRAPEB.

SPINDLE BEARING.

(Application filed Nov. 14, 1898.)

(No Model.)

'N NT K- qfo e ODrajber M MT? WITNESSES- REVS PEFER$ co.. mom-Lima, WASHNITED STATES GEORGE 0. DRAPER, OF'HOPEDALE,

MASSACHUSETTS, ASSIGNOR TO THE DRAPER COMPANY, OF SAME PLACE ANDPORTLAND, MAINE.

'SPINVDLE- BEARING.

SPECIFICATION forming part of Letters Patent No. 625,154, dated May 16,1899.

Application filed November 14, 1898- Serial No. 696,329. (No morleLl Toall 1071 0712 7112 may concern:

Be itknown that I, GEORGE O. DRAPER, of Ilopedale, county of lVorcester,State of Massachusetts, have invented an Improvement inSpindle-Bearings, of which the following description, in connection withthe accompanying drawings, is a specification, like letters and numeralson the drawings representing like parts.

This invention relates to spinning-spindles of the type having atapering pintle to fit a correspondingly-tapered bore in a bolster, theproper fit being effected by vertical movement of the holster; and myinvention has for its object the production of a novel bearing, step,and adjusting means for the bearing.

In carrying out my invention I employ a non-metallic bolster impregnatedwith an antifriction compound and a metal step for the spindle, thebolster being adj ustably supported by a novel device governed by thestep.

Figure 1 is a vertical sectional view of a spindle-bearing embodying oneform of my invention. Fig. 2 is a detached perspective view of thebolster-support, and Fig. 3 is a sectional detail of the lower end ofthe bolster.

'In the course of my experiments with nonmetallic bolsters impregnatedwith an antifriction compound, intended for use with a spindle withoutoil, it. has been found practically impossible to provide a properstepbearing, as the wood of which the bolster is made will wear awayrapidly when used for a step, and in the device to be described I haveovercome this difficultyin a simple and highlyeffective manner.

The spindle S, having a tapering pintle to fit a correspondingly-taperedbore in the bolster, the bolster case A, having its lower end exteriorlythreaded to receive the usual nut B to retain it on the rail 0, and thesleevewhirl W, attached to the spindle, may be and are of usualconstruction.

The bolster B is preferably made of wood impregnated with anantifriction compound, which obviates the use of oil to lubricate thespindle, the bolster being 'exteriorly recessed to receive a suitablefibrous or other packing P.

The metal spindle-step D is made as a screw,

having an unthreaded shank d, extended through a hole in the bottom ofthe bolstercase, and flattened or otherwise shaped at d to be engaged bya suitable tool, the lower end of the spindle resting on the top of thestep, so that adjustment may be elfected while the spindle is running.An interiorly threaded bolster-support 1) (shown separately in Fig. 2)is engaged by the threaded step and fits snuglyin the case A below andsupporting the bolster B I have herein shown the support as an annuluswith a longitudinal groove or "slot 1) to receive a pin 10, passedthrough the bolster-case, to prevent rotation of the support, so thatrotation of the step D will raise or lower the bolster-support. Thisconstruction provides for vertical adj ustment of the bolster relativeto the step.

An upturned lug or projection 11 on the support I) enters a recess 5 inthe lower end of the bolster, as herein shown, to prevent rotation ofthe bolster.

- In order to lubricate the step, the lower portion of the case A isfilled with Vaseline or some other thick or viscid lubricant, a felt orother suitable washer w snugly fitting the case and the shank d of thestep below the latter. Thin oil would readily escape through suchapertures as might be left in the construction herein described, butVaseline or other thick and more or less jelly-like or viscid lubricantwill not escape. A single supply of Vaseline will probably last as longas the spindle, as Ihave found by'experience that any escape of thelubricant is Very slight, and just after the device is put into use, theair serving to harden the film of lubricant around the shank of the stepand form a species of seal thereat. The compound with which the bolsteris impregnated lubricates the lateral bearing for the spindle.

By the construction herein shown and described it is possible toinstantly remove the bolster for examination and was quickly replace itwithout in any manner disturbing the position of the step or theadjustment of the bolster-support, which adaptability is of verygreatadvantage in practice. So, too,

the rotative movement of the step herein 0perates only to adjust thevertical position of the bolster, the spindle itself having no verticalmovement imparted thereto, with a consequent change in the direction ofthe driving-band and alteration of the position of the yarn traverserelative to the bobbin.

In its mechanical features the apparatus herein shown is simple, readilyand cheaply made, and quickly assembled.

My invention is not restricted to the precise construction herein shown,as various modifications may be made without departing from the spiritand scope of my invention.

Having fully described my invention, What I claim, and desire to secureby Letters Patent, is

1. A bolster-case, a bolster and a bolstersupport therein, the bolsterresting loosely upon said support and being readily removable therefrom,a spindle -step operatively connected with said bolster-support to moveit vertically, and means to rotate the step from the exterior of thecase and thereby adjust the bolster-support.

2. A bolster-case, a contained step having a constant vertical positionand exteriorly threaded and having a smooth shank extended through theclosed end of the case, a bolster, and a bolster-support upon which thebolster rests and from which it is readily removable, said support beingengaged by the threaded step, rotation of the shank of the latteradjusting said bolster-support and bolster vertically.

3, A bolster-case, a spindle-step having its shank extended through theclosed lower end of the case, a bolster having a tapered bore to fit thepintle of the spindle, and'a separate bolster-support in engagementwithand vertically adjusted by rotation of the step, the bolster restingloosely upon and being readily removable from the bolster-support.

4. A bolster-case, a bolster, an annular, non-rotative bolster-supportVertically movable in the case, and means operative from the exterior ofthe case to effect vertical movement of said support and consequentadjustment of the bolster while the spindle is running.

5. A bolster-case, a bolster, a non-rotative bolster-support detachablyconnected with the bolster and vertically movable to adjust it, arotatable step in screw-threaded engagement with the bolster-support, tomove it vertically, and means to rotate the step from the exterior ofthe case, the bolster being removable from the case without disturbingthe bolster-support.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE O. DRAPER.

Witnesses:

E. D. BANOROFT, A. H. CoUsINs.

